. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1877. Common Doorweed or Knotweed. the details enlarged âPolygonum aviculare. POL'?GONUM (Greek for many-jointed). Polygo- ni'tcece, .Iointweed. Knotweed. Mostly herbs, ann â flovyers in racemes, spikes oi \-. I'lnwrr^ npetalous; calyj â¢â .â â ., "i II. sometimes ex :, : I â . .1 style or stigra: II, :
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1877. Common Doorweed or Knotweed. the details enlarged âPolygonum aviculare. POL'?GONUM (Greek for many-jointed). Polygo- ni'tcece, .Iointweed. Knotweed. Mostly herbs, ann â flovyers in racemes, spikes oi \-. I'lnwrr^ npetalous; calyj â¢â .â â ., "i II. sometimes ex :, : I â . .1 style or stigra: II, :i ,1 ;ular or ;^OLYGONrM afflne, 9. cuspidatum, 11. Persicaria, 4 ampbibium, 6. elet/ans. 5. pumilum. 3. amplexioiiule, 10. Hartwrightii, 7. Sachalinense, 12. areuarium, 5. liinieerum, 8. Sieboldi, U. Baldschuanicum, 2. iiiuUiUorum, 10 and tiieci^sum, 10. Bmnonis, 9. s\ii)pl. list. yariegatum, i. cilinode, 1. orientale, '.^. Zuccarinii, 11. compactum, 11. oxyphyllum, 10. A. Plant twining. 1. cilindde, Micbx. Slender somewhat downy climber, mostly perennial: Ivs. cordate-ovate to ovate-lanceolate, more or less angular or halberd-shaped at base: stem bearing a ring of retrorse bristles at the base of each sheath (whence the specific name): fls. white, in loose- panicled racemes from the upper axils. Nova Scotia south and as a cover plant for rocks and as a denizen of shrub-masses. 2. Baldsohuinicum, Kegel. Tall perennial climber be- coming woody at the base: Ivs. cordate-oval or hastate, acuminate, slender-petioled: fls. small but very numer- ous in terminal erect ordroopingpanicles, rose-colored: fruiting calyx small, 3-sided, at first whitish and then becoming rose-colored: akene shining black. Bokhara. III. 16:656; 21:17. Gn. 55, p. 454. Gng. 5: 181. 7544. â Offered by one American dealer and listed in the American catalogues of European dealers. De- scribed as a very vigorous and decorative hardy plant, climbing 20 ft. high. It was first des
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